<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>按钮样式</title>
<style>
input[type=button],input[type=submit],input[type=reset] {
    background-color: green;
    border: none;
    color: white;
    padding: 16px 32px;
    text-decoration: none;
    margin: 4px 2px;
    cursor: pointer;
}
</style>
</head>
<body>
    <p>按钮的样式</p>
    <input type="button" value="按钮">
    <input type="reset"  value="重置">
    <input type="submit" value="提交">
    </body>
</html>